Question

I'm having trouble understanding when to use SN1 or SN2 (or both)

0 Sn1 - Sn2 Homework Indicate the mechanism by which each of the reactions occurs. (Snl, Sn2, both Snl and Sn2, or NR) Draw the final Product (s) of the reaction. Draht HI > 7 yet tha 3 Matt Hal > © (27 Xy+HBr > "OH + HBr

Answer 1

-OH HI SN2 Mechanisms oth HI profenation 019 Bez is backside Frontside Mechanism - töha Helly to Helly sola ta (11) son Hu Mr Mechanism pytlonation SNZ پال

H By Mechanisme 1,2 methyl shift OHAR GOH 6
example 1 & 3 step one is protonation converts alcohol to good leaving group,i.e H2O backside attack by SN2 way forms the product.

Example 2-1st step is protonation.then loss of h2o molecule forms planar carbonation.attack of Cl- by SN1 way backside as well as front side gives inversion + retention product

Example 4- 1 st step is protonation,then loss of h2o molecule forms planar carbocation, then 1,2 methyl shift forms stable tertiory carbocation.attack of Br- gives the product. this is the example of SN1 reaction.